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I'm still muddling around with the screen coordinate math for GE. Here is what I would like to do:

Reduce the screen boundry for my actor when using a random actor placement script. The script takes place in a different activation region from the original view:

I use the following script to change from the initial view area to the new activation region:
view.x= -360;
view.y= -160;
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My actor needs more restricted boundries than the rand statement below offers me. Say, 40 pixels in from the left, right,top and bottom of the activated view region.

This is the script that I am working with:
x=rand(view.width)+view.x

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I've spent several hours trying to tinker with adding and subtracting from the view.width and view.x. I've also gone back over the "range" example that jazz-e-bob posted a while back . I've tried different variables and "if" statements. I'm not getting anywhere.
To prevent a disasterous head banging incident, I'm posting here. Anyone care to venture an educated (or uneducated) guess?

TIA

Try this:

x = (rand(40) - 20) + your_x_center;

This will make the actor around your x center with the range:

your_x_center - 20 to your_x_center + 20

Please excuse me. I'm having great difficulty understanding what you mean by this :

Reduce the screen boundry for my actor when using a random actor placement script. The script takes place in a different activation region from the original view

Could you spend some time (for me ) to explain what you want to do ?

Morover, remember my question about ActivationRegion ? About the linking it to view. Well it's the first time I'm using this feature but I find no way how to Link the region to view and what I understood from your post is that you are actually capable of modifying ActiavtionRegion.
I was womdering HOW

tout ne va pas bien ...

Ingsan,
I am so sorry. Now, I do not understand.

What do you want to do

tout va bien
Everything is ok

What i just wanted to know is some more informations about the way ActivationRegion worked. How to use it step-by-step.

Makslane,

You are amazing! Thank You.
Você é surpreendente! Obrigado.

(Courtesy Babel Fish Translation)

ingsan wrote:about ActivationRegion ? About the linking it to view

There is no links between activation regions and the view.
Look checkers demo

Is a region around the "Loading" actor and other around the game.

On the Loading actor's "Create Actor" event just move the view to right place

Você é surpreendente! Obrigado.

Si Si Si Si

Makslane Thanks. I'm gonna do what you said !